Very fun, but gets old rather quickly.
Failsafes are surprisingly enjoyable, despite being so easy to obtain. the only problem here is that black hole and bomb are really weak compared to the laser and the shock abilities.
Furthermore, you can quickly chain failsafes together, EXCEPT THE BLACK HOLE! which was INCREADIBLY annoying. i found myself just chaining together the laser failsafes and that worked really well.. untill i accidentally hit a black hole which broke the combo.
even moreso, the black hole seemed to do nothing at all except interrupt my failsafe chaining.
and then how the laser failsafe actually used up all my laser charge, which made the weapon on its own rather pointless. not that it's slow charge (charge: max lvl) or increadibly slow charge when you're about to use it were reason enough not to use it, but it also stops you from being able to use your other 2 weapons. Summary: don't bother with the laser. However, the lasers 'width' stat effects the laser failsafe. i found that kinda weird.
and on that, weapon upgrades have no information on what they do.
Despite these flaws, i found this game quite fun and enjoyable, and a good way to kill an hour or 2.