Contra (./6) :

Thanks! My goal is to stuff it with as many features as possible while keeping the speed playable.

You can add a lot of feature because it's very fast currently

I added boulders! You can push them around, squish enemies with them, and get crushed by them

New screenies coming soon.

EDIT: Here it is! This is half a level in which I kill an enemy with a boulder, grab a bonus pack, and use the boulder as a platform on which to land among the spikes so I can get past that section. Notice that my point counter gets a fifth of a heart when I grab the bonus; five bonuses and you get an extra life.

Updated screenshot

This is real speed on a TI-84 Plus, by the way.