Super polished with a nice looking retro aesthetic.
I like the mix of a straightforward goal mixed with the intensity of the time-limit. Having goal split between coins, keys, extra bottle and then the goal made planning out a route a fun experience, with the oxygen bonus being a nice incentive to keep getting better and nailing tight timings.
The core loop reminded me a bit of the hectic pace I felt in Half-Minute hero, very well done!