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Proto:The Bugs Bunny Birthday Blowout

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This page details one or more prototype versions of The Bugs Bunny Birthday Blowout.

The prototype of The Bugs Bunny Birthday Blowout, then known as The Bugs Bunny Birthday Bash, is a pretty early build. Layouts for the first four worlds have been worked on, though it isn't possible to complete any of the stages at this point.

Unfortunately, the only available release of this prototype is a bad dump, though efforts have been made to repair the ROM.

Hmmm...
To do:
Original and fixed ROMs.

Sub-Pages

BugsBDayFlower.png
Stage 1
The most complete stage, but that's not saying much.
BugsBDayPalm.png
Stage 2
The obligatory desert stage.
BugsBDayLava.png
Stage 3
The volcanic stage. Watch out for lava!

NOTE: Stage 4 is badly corrupted, so it can't be compared to the final's Stage 4 easily.

General Differences

  • There are no copyright, title, or story screens. The game throws the player to stage 1-1 immediately.
  • All objects, including Bugs, move at about half the speed they do in the final. This also means that the floating platforms have their ranges halved, making some sections impossible to cross.
  • There are no giant carrot objects present, meaning levels cannot be completed. The code for the object is present and partially functional: touching it will cause Bugs to float off the screen in a balloon as in the final version, but the level still doesn't end, and the music loops indefinitely.
  • There is no lives system in the prototype, so it's not possible to get a Game Over. Code-wise, the basic framework for the system is in place, but it is hard-coded to jump to the same code path regardless of the life counter's value.
  • The only icons that work at this point are the carrots. Bugs cannot interact with any other icon.
  • Bugs does not dive in and out of tunnels in the prototype. The tunnels behave much more like the pipes in Super Mario Bros.
  • There are four debugging functions available: hold Start when starting the game to get a stage select menu, B to start on stage 2-2, or A to go to a preliminary version of the Mole Game. You can also moonjump by pressing Select.
  • The Mole Game is more of a graphical demo than an actual game at this point. The moles cannot be hit, Bugs's sprites are glitched (due to a mismatch between his tilemap and the actual CHR layout), and both the music and the game loop indefinitely. It is possible to "end" the game before it starts (triggering the otherwise unused messages "CARROT IS SHORT" / "SEE YOU AGAIN.") by freezing the carrot counter at zero, though it is programmed to simply restart from the beginning when this happens.
  • All of the music tracks used in the final game are present and complete in the ROM, though a good number of them are completely unused at this point in development.

Graphical Differences

General

For graphics that appear in multiple levels.

Prototype Final
Spin me around Where'd it go?

The disappearing platform in the final was a more complicated spinning platform at this point. The design was simplified to make room for Bugs' diving animation, but while the platform "disappears" it still spins.

So if you were ever wondering why those platforms had weird collision...now you know.

Prototype Final
Needs improvement Better

The graphics of Bugs and the balloon's basket were improved for the final.

Prototype Final
What? The universal symbol for health

The heart in the prototype was originally a bunny head next to some odd-looking waves, and was thankfully changed to something more understandable. Since Bugs can't interact with this in the prototype, it's not known if it would have served the exact same function.

Prototype Final
Who's got the bomb?More bombs than Don Bluth in the 90s Alarm clocks have been known to explodeIt's Explode o'clock

This bomb enemy was changed to an alarm clock. Same function, though, and the clock makes more sense thematically.

Prototype Final
Elmer Fudd is after dolphins now Nets work better in cartoons than reality

Elmer's nets were given more detail in the final.

Title Screen

Prototype Final
Happy Early Birthday Bugs Now it looks empty

Although the prototype normally bypasses the title screen, it is in fact present in the ROM, and can be seen by changing ROM address 0x1E752 to $40 and holding A as you power on/reset the game. Unfortunately, a handful of bytes in the tilemap data are corrupt as a result of the bad dump.

In the prototype version, the chains are larger, the letters of the title have some shading that was removed in the final, and there are little squares around the border.

Mole Game

Prototype Final
Isn't it cute? Remember him? Of course you don't

The mole game has actual moles in the prototype. The graphics were altered into Willy the Weasel.

Prototype Final
Puffy clouds Woo

This change altered the title graphics as well, replacing the unique graphics of the prototype with a rather plain-looking text box in the final.

Level 4

Prototype Final
Through thin And thick

The pipes in this stage are thinner in the prototype.

Level 5

Prototype Final
Awfully plain I guess you could say it was trunkated. If you were a jerk

The titleset for Level 5 has no powerup icons at this point. The inclusion of those icons meant that some graphics had to be removed, so the second tile for the tree trunks in the prototype was overwritten in the final. The trunk was also given some additional shading.

Prototype Final
Neat Pink?!

Another victim of tile overwriting: the unique spike graphics were changed to the simpler 8×16 spike tiles used in other levels.

Level 6

Prototype Final
It sure is a vase Exciting stuff

The lip of the vase was changed slightly in the final.

Prototype Final
Your beach ball deflated "But that's not a football!", you say

The (American) football was redrawn to look more like a...well, football.

Ending

Again, there's no ending in the prototype, but the graphics are there.

Prototype Final
Downs Syndrome Bugs? He's reading the ending dialogue

Bugs' eyes were redrawn to remove the cross-eyed look of the prototype.

Prototype Final
I surrender! Trying to kill Bugs does not count as a "funny trick", guys

And again.

Prototype Final
That bright shade of blue didn't help either No rabbit ears, guys

Road Runner and Pussyfoot were removed from the photo in the final, probably because they don't actually show up anywhere in the game. Taz's oddly proportioned stomach was fixed in the final.

Unused Graphics

Graphics that are mostly absent from the final.

Mole Game

It's okay

Various tiles from the Mole Game. Most of these are still present in the final version; only the normal mole head and the first three letters of "SORRY" were removed.

Speedy Gonzales

Pulled over by the P.C. police

Yep, it's him. His sprite only appears in the prototype, though there doesn't seem to be an object associated with these graphics.

Spiked Ball

You know, like in the movies

Just a simple spiked ball.

???

Uhh??

These odd tiles take up a character bank in the prototype. It's unknown what they would have been used for, or if they were even intended for this game. These were replaced with the Game Over and copyright tiles in the final.

Audio Differences

Music

There's an extra piece of music in the prototype which is used while Bugs walks into frame.

Prototype
Final

The death jingle is 20% faster in the final.

Prototype
Final

The World 3 song has a 2.5-second intro which was removed from the final track.

Prototype
Final

The bonus stage song is about five seconds longer than the final, and has a different ending.

Sound

Prototype
Final

Bugs' hammer sound in the final has a Square2 component, which is not the case in the prototype.

(Source: Original TCRF research)