I'm experiencing the same problem as FlashyCloudz, the blocks/crates in the first lvl of chapter 1 are bugged. After chopping down the 4 segments every consecutive hit kinda respawns and immediately breaks the entire thing again. I was able to get a 1000x combo on this bugged crate to easily get the score and multiplier medals, but since the invisible collision box of the crates is still there, I'm unable to continue the game past that.
Restarting the level and refreshing the page don't seem to fix the problem, but since it seemingly was playable for others until at least 2018, I guess the flash workaround with ruffle is responsible for the problem.
But since it's kinda necessary for running the game at all, I guess the game is therefore unplayable as of now.
If others are able to play it nontheless, please leave a hint as to how.
Until then, I can only judge the game by its intro and the first minute of gameplay.
Despite the game-breaking bug it looks like a promising, well polished game with a charmingly weird story. And others also seemed to have liked it a lot, so I'm still voting the average 4,5 stars. However, I still hope this bug can be fixed or avoided somehow...