it's hard ! Not enougth energy, no miss or you die !

Really hard ^^ You can't miss a shoot or it's over.
But it's fun too ;)
With a bigger energy bar it would be better I think.

I really enjoy the music !

Agree with the others, this is really pretty difficult. I like the idea though and the graphic fit nicely with what you were going for I think. I think increasing the energy would be well within the rules still as it really isn't changing the overall mechanics just the balance.

I liked the music! Hard game, finally instead to shoot I think it is better to crash the enemies, doing that you can not miss :P

Wow every move counts in this. I like the idea. The minimalist graphics are nice. The sound design is pretty good. It is hard even when you get the idea. maybe a little more energy reserve. overall great entry.

It's a bit hard but I like it!
The game boy color palette fits perfectly and the sonar animation is awesome.
Good sound too! :)