the first place where the dash is needed is badly designed, when one lands on the edge of the middle platform/island the player is pushed into the second spike-bed instead of being kept on the platform, causing frequent fake deaths.
Yes when I was designing the level in my notbook it looked pretty good but then obviously in game it's a little different. Also in case you were wondering and didn't notice I made the player slightly go up when dashing so it didn't get stuck on ledges.
