Added some helicopters.
Cost me 800 bytes of model data (3 detail levels).
I don't have enough tokens to make them fly or shoot back, so they'll just be targets in "destroy enemy airbase" missions.
#pico8

AA guns!

I had to nearly crash a helicopter into a hangar in order to bring you this close up. You're welcome. 🙃

This one at least should be able to shoot back at you (due to the existing heli cannon code).

#pico8

Engaging AA guns head on is not a good idea.

Also I need to figure out a good way to convey helicopter damage.

#pico8

@tmulgrew are bullets rendered as single pixels? no tokens left to render them as ‘tracers’ eg using a line?

@fsouchu might be stretching it.
I'm down to 30 tokens, and still need to display player damage and do something sensible when you complete all the missions.

It would look nice though..