Swabby

Game Gear Homebrew (NTSC) for SMS-Power's 19th Anniversary Competition.

"Rise from your grave!" With the intent of resurrecting the man/beast centurion once more, the mighty Zeus strikes the abandoned graveyard with a vitalizing beam of magic. Only this time, due to a still unexplained glitch in the Segaverse, the magic misses its intended target, and continues downwards to the deepest of the Sega 8-bit catacombs. Here it strikes Swabby, the mazerunning snail built into some of the earliest Master System consoles.
Gameplay:

You must take control of Swabby as he travels through three challenging rounds of 8-bit craziness. Start on Altered Beast's graveyard, and proceed to Sonic's Green Zone. Then prepare for the last stage, which is set in the unforgiving streets of Shinobi. Dodge and/or shoot the enemies in each stage, and try yo keep safe while also keeping an eye out for chances to beat the high score. A flying enemy is worth 100 points, a shooter is worth 300 points. You are also awarded bonus points for each of your remaining lives at the end of each round.
Controls:

Start the game by pressing the Start button on the title screen. Move Swabby with the d-pad, and use button 1 for firing. Swabby is not an avid shooter. In fact, his ability to shoot (and fly) is an odd side effect of Zeus' magic. Hence, Swabby can only have one bullet in the air at the time. You must plan your shots carefully...

Can be downloaded freely from: http://www.smspower.org/Homebrew/Swabby-GG