Altered Beast (Sega Master System)
Altered Beast is a rather sloppy port of the original arcade classic by Sega.
Curiously, there are slightly different variations of the level transition music from the arcade versions that went unused.
Helicopter blades, possibly leftover sounds from Choplifter or Thunder Blade.
The Altered Beast series
|Sega Master System||Altered Beast|
|Game Boy Advance||Altered Beast: Guardian of the Realms|