Scan for Uploader Glitch - [Click Here to Open the Game]

This was neat. Still don't know how to get the heart or gem yet

I haven't gotten too terrible far in this yet, but from what I've seen it looks really good. For reference I got to the part where you push a boulder, but didn't think it through, and turned it around and pushed it down a water pit instead of using it to reach a platform with treasure on it. Good timing on traps, and I am thus farm impressed with the level design

I plan on trying this again later, but can make no promises.

Absolutely wonderful level!
Nearly every trap here reeks of originality, and yet that comes at no cost to the simplicity of their design. Special mention goes to the bottom right puzzle which is a solid mind bender with only five objects. It's impressive how well you managed to control the taps and the various ways you used them to lock the player out of areas. The metal crates used to control the flow also make for a novel aesthetic that doesn't bore. I also appreciate the small antepieces that prepare the player for upcoming traps (the boulder on a crate that gives the player a glimpse of underwater boulder physics before the puzzle and the first point where you have to swim through the ceiling with minimal risk). Even with all this going for it, it ends in a timely manner and doesn't overstay its welcome (even without checkpoints). All around, a delightful experience.
A few small nitpicks cost the level a bit though: It starts off on a fairly annoying note with some irritatingly precise swimming. The jump off the steel crate during the trap before the first checkpoint is pretty annoying. Most significantly, near the end, where you jump through a secret area and have to wait for the dynamite to blow up, you can randomly get stuck in the corner and accidentally jump into the spike above. (this happened multiple times, why did that spike have to be there )
I recommend this level to everyone. It's very fun and it demonstrates how good of a mechanic water crates are.