Thank you so much for your feedback! I know the platforming definitely needs work, the pits are easily the least polished part of the game, I will work hard on improving them in the future, I have had a few friends complain about the diagonal dashing as well so I will probably take that out if I cant tune it up. I'm sorry about the bug where you become invincible. I occasionally encountered that in testing and thought I fixed it. Would you happen to remember any details about what caused it? I only encountered it when respawning, and I'm pretty sure I fixed that, but it looks like other things can cause it too.
Also, it would mean a lot to me if you would copy this comment to the submission page for this game to help bump it up higher on the submission list. Thanks!