Awww, almost got a hundred, but then gravity and no-floor tricked me!
Interesting experiment around Jetpack Joyride, Undertale, and Balloon Fight. It felt a bit restricted on the Undertale section where I can't move diagonally, and there was also a strange effect of projectiles accumulating over time (my tactics there was just to wait in a safe place until all the diamonds would spawn).
I like this little game, it was fun to spend some time!