If it's the double jump that's giving you trouble, it's designed so that you can't just double jump in rapid succession. You can only jump again in the air once the slime is falling from its previous jump.
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that is what i meant. ill play again later and see how i feel. thank you for your response.
later edit. im doing better but being unable to jump when i want still feels off, even bad at times like the spiral one. plenty of times i hit jump while falling but it let me hit the spikes
later update, i think the boss fight was the best part. when i died in the fight it actually felt like it was my fault