Amazingly fun interpretation of Cirno! The game was fun but challenging, and I do like how the large time penalty from getting hit and the comparatively small time boosts from beating frogs make the gameplay loop not just mindlessly holding arrow keys and Z, but also having to be careful about the rock throws and getting stabbed by the frogs.
I'm not sure what the point of small frogs appearing during the boss battle with the toad was? I feel like it would have been more effective to spawn the bigger frogs so they 1) offer a source of danger and 2) give you bonus time to fight the boss when you beat them.
Overall a very fun little thing!