I think it's a great idea - maybe the gods should vanish on their own, though, if you aren't looping around them - I was able to create lots of "gods" by rapidly spinning around different circles - to the point my browser tab almost gave up.
Idea - maybe the loops should be placed strategically on the ground rather than there being so many of them. Also, the bullet shooting is a bit chaotic - the game quickly turns into bullet hell and it's hard to keep track of what's happening.
Additionally, I'd like it if there was something I was protecting that was fundamentally "unhealable" - the gods are simply being summoned to protect that entity. Right now, there are infinite gods you can summon at all - that's great, but I'd like if they were soldiers protecting "something".
Cheers!