Wonderful game!
Did 2 regular playthroughs and a Challenge playthrough. Not gonna attempt no hit, for now...
Tight Controls, meaningful upgrades, very nice boss design,
The blob could use a bit of telegraphing in their attacks, but other then that, all the bosses were very fun to fight.
The visuals are a joy to look at, and the animations have a TON of character to them.
Music and sounds also fit the game well.
Very, very nice game!