Nice arcade game! Simple but also fun to play as a nice distraction for pauses in between work. The game feel was also on point and very satisfying for inflating balloons and for killing enemies.
There are couple of problems I ran into while playing, plus I'll also add some suggestions if you plan on updating the game:
- If you restart the game, sometimes it breaks, and doesn't let you move, nor enemies move or shoot (you have to refresh the page to restart);
- The sounds are very loud when you start the game (I had to lower my PC volume to 2% while playing), maybe add some sound volume options and make the volume start very low in the app, for example start at 20% volume, or simply lower the master volume of sounds in the game (since if you don't plan on adding background music, the user doesn't need separate music+sounds volume controls and thus won't even need an in-game sound adjustment option, but still, it could be nice adding an in-game option if for example someone wants to listen to music while playing the game, they can do that without having to lower their PC volume, thus also the music they are litstening, to adjust the in-game sounds);
- The controls felt very weird: sometimes, when I released the button, the ship kept moving left or right for up to half a second, which obviously, in a game about avoiding obstacles and with a one-hit game over, is not very desirable. Perhaps this is just a problem of the browser version, so maybe having a downloadable version could fix the problem, but still, I'd look at the code to make nothing weird is happening there, since the game is not actually lagging, only the controls sometimes do not work properly.
Overall, simple but inventive remake of the space invaders game which also fits the theme (though I would have gone for the title "Space Inflaters"), good job!