In Celeste, spikes don't hurt you unless you're facing towards them. This means if you land on a platform that has spikes with upward momentum, you can walk on the platform until you get boosted up.

Read more here: https://celesteclassic.github.io/glossary/

yes, on the standalone / pico 8 version just press E

Yoo gl! I'm 14 but now am top 9 >:). You can go really far if you keep going!