The tunnels are way to small. Also, I got to the spikes, died, and found out that there was no checkpoints...it took me so long to get to the spikes. Anyway, good game and what a fun mechanic!
it's actually really easy once you get used to it. maybe i find it easy just because yk... i made the game. i was able to beat the game 3 times in a row so idk, slowly fly towards the tunnel while pear guy is looking at it.