In TAoA alpha 4 version with the shop you can upgrade by pressing on the power button( the power's you use), so here is an example how to do it simply:

Teasers for my new project!

(And of course another status update).

An update! (Not an actual release though).

Just a Pico sprite

The whole squad is here!

Interested? Follow me!

I-Buki

Mio-Da!

Ibuki Mioda!

Shuiro Haname. #Commission

Commission for @ShuHaname

Why walk when you can jump?

Spaaaace~

These are background sprites I've created for a game I'm working on at school ^w^ Click on the post to see how the sprites connect. You won't regret it! (personally, I think it's pretty heheh)

Drawn in Piskel using my mouse. Whaddya think?

Regular exercise is key for healthy wings.

Try it out!

https://gamejolt.com/games/AeonNightmares/605184