https://takusan.itch.io/slightly-angry-max
Made in under 48hrs for Ludum Dare 38, Jam category. Single programmer, but I used public domain base sprites and music.
It's my first game jam, so the game is far from perfect, but I learned a lot and I actually had fun despite lack of sleep.
Gameplay:
Tools used: Unity (C#), Gimp, SFXR/BFXR