@vidja You aren't wrong about the time limit. I usually run from the left end of double jump to the dash myself. One bit of help is that you can simply hold up while doing wall jumps and just focus on the left and right on landing, which helped me on getting up there quickly enough to have leftover time. I also only used the double jump to clear the post left of the dash and upon exiting the wall jump area.
Pretty solid overall, though level 10 had a few issues with powerups not respawning. To anyone having issues with this, go through the bottom right area first, then the top area, then the bottom left. The first one you hit tends to respawn without issue, and doing things in this order allows for an easy one-shot of the second and third area since you won't need double jump to get back from the bottom left.
@Alien_dude2 There are a few different underbarrel items. The laser attachment is common, but assault rifles at least have a shotgun, grenade launcher, and sniper rifle attachment.
@Uroshuchiha the hard badge doesn't really take too long if done right. Prestige requires level 50, and I've hit weekly challenges worth 100k xp, though this week the top xp amount is 50k. I think level 50 is around 400k xp.
@keane5 The answer is a really difficult combo. Jump and slurp the bottom left bat as far up as you can to fly to the right. Then you need to land a lick/bounce just right to bounce off it. Do the same to the bat above to get to the skull, then fly left using the bat below you.
@Spooty You have to do a reset and choose the other ending. I'm guessing the right-hand one is letting someone sacrifice themselves for you, or you would've simply reset upon sacrificing yourself.
@Phaet Not sure what bug you mean, but considering you have that high of hobbies, you likely have x2048 reset boost, which is the maximum.
@DaEdibleNapkin Head to the right, break your legs but don't fall onto the platform. Fall left into the grass pit and then climb onto the platform to repair your legs and jump up to the left. Jump onto the moving platform above and crawl across the gap to the left. Repair, jump left to the button to clear the path, then jump again to break your legs before falling to the grass below. This doesn't include the battery pickup.
@Ottava Hold jump to clear the jump area and land in the hole. Head to the left, grab the pickup, head right and jump up to crawl to the computer. Jumping straight into the hole doesn't break both legs.
Reminder to everyone that you should manually save on a regular basis. The autosave basically clears whenever your cookies are cleared, while the manual save stays with your account. I'm playing off an account I had back when the game was still in beta, and that includes a five year gap and a different PC.