DOWNLOAD ENGINE TEST
Features:
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Controls:
Left/right arrow keys - Move, double-tap to run
Up/down arrow keys - Look up/down, aim attacks up/down
Shift - Jump
Control - Attack
F2 - Toggle debug overlay
F3 - Change framerate
Page up/down - Skip between rooms (there are 2 rooms)
Screenshots:

A Hammer Bro and a Shy Guy

Prepare to die, Mr. Goomba!

You can charge the neutral ground attack!

Boomerang Bro and Shy Guy

A Koopatrol with a shield

Throw me a bone
Also here's the source if anyone wants it
I hope you enjoy!