Notes:Iridion 3D

Value of the initial game mode decided by. Screen mode is stored in byte $3000107; it normally has the range [0..$C] but some values in that range and any higher value jump to more cases, up to either $70 or $71 (not sure which).

00* - FREEZE 01* - Glitched stage intro screen 02+ - Glitched boss intro screen 03+ - FREEZE 04= - FREEZE 05+ - Main menu, but the initial level (w/o password) is set to 01 06= - FREEZE 07* - Title screen fade-out animation 08 - Stage Clear screen, then goes to a glitched level 09 - Game over animation 0A - FREEZE 0B - Password screen 0C - Ending 0D - Gallery Pictures 0E - FREEZE 0F - FREEZE 10 - Stage 1 11 - Stage 1 Intro 12 - Stage 1 Boss Intro 13 - Stage 1 Boss 14 - FREEZE 15+ - Main menu; selecting "START" on the menu sends the player to Level 1 (NORMAL/INITIAL) 16 - FREEZE 17* - Title screen fade-out animation 18 - Stage Clear screen, then goes to Level 1 20 - Stage 2 21 - Stage 2 Intro 22 - Stage 2 Boss Intro 23 - Stage 2 Boss 25+ - Main menu; selecting "START" on the menu sends the player to Level 2 28 - Stage Clear screen, then goes to Level 2 30 - Stage 3 31 - Stage 3 Intro 32 - Stage 3 Boss Intro 33 - Stage 3 Boss 35+ - Main menu; selecting "START" on the menu sends the player to Level 3 38 - Stage Clear screen, then goes to Level 3 40 - Stage 4 41 - Stage 4 Intro 42 - Stage 4 Boss Intro 43 - Stage 4 Boss 45+ - Main menu; selecting "START" on the menu sends the player to Level 4 48 - Stage Clear screen, then goes to Level 4 50 - Stage 5 51 - Stage 5 Intro 52 - Stage 5 Boss Intro 53 - Stage 5 Boss 55+ - Main menu; selecting "START" on the menu sends the player to Level 5 58 - Stage Clear screen, then goes to Level 5 60 - Stage 6 61 - Stage 6 Intro 62 - Stage 6 Boss Intro 63 - Stage 6 Boss 65+ - Main menu; selecting "START" on the menu sends the player to Level 6 68 - Stage Clear screen, then goes to Level 6 70 - Stage 7 71 - Stage 7 Intro 72 - Stage 7 Boss Intro 73 - Stage 7 Boss 75+ - Main menu; selecting "START" on the menu sends the player to Level 7 78 - Stage Clear screen, then goes to Level 7 88 - Stage Clear screen, then goes to the ending

Ones marked with *, +, and = jump to the same code as the others marked with the same one. Of note:
 * Target * does something
 * Target + jumps to a 113-case switch statement bound by byte $3000107 (as mentioned above)
 * Target = does something

The switch that runs this happens after the logo screens and intro movie; those are always played.