I fell out of the battlefield on level 21 with 15750 points.
The presentation is clean and nice and the controls feel super great. The feedbacks are on point, I thought the sound effects were perfect and didn't miss sound for enemies shooting in the case of this game. The implementation of the theme is super cool and I like the limited battlefield you can fall from too.
I think a same level could always combine some enemies which directly want to target the player and some which don't.
Cool!