It's not a bad game, but it does have quite a few things I would consider bugs in it.
~The hitboxes on some enemies (first Jenifer boss battle when she drops down her box seems wider than she is) and barrels (mostly the one by the first teleporting naked guy even after untrusted, box seems a bit taller than the actual barrel) or maybe it's pewdie's hitbox that is a bit off.
~As people have mentioned the part where piggie has to turn into a snake to get under the walls is a little tough because the save station might spawn you out of it's reach. though another bug I noticed was if I jumped a little too early on that part it sometimes warped me back though two walls back to the beginning where I'd need to let myself die to restore my power.
~The biggest complaint I have is probably the voice clips, they are important clips from pewdie and have great quality but... they just play too much, if you run past a save station more than once for any reason, because you fell into it failing a jump or forgot to change characters etc., the "Save station, Gotta love mah save station!" plays multiple times ontop of itself. Also "Chairmode Activated!" can be annoying, especially during the Jennifer fights. it's great to have them in there, but can we have an option to "only play once" or "turn off" maybe even a "randomly play" just because they can grate a bit on your nerves (especially at the piggy snake barrel part).
~Barrel knockback basically locks you into a death roll in most places, especially with a bro or oni behind you. I'm not asking for invincibility frames, because that would make the game too easy, but maybe let the barrel pass though you after knocking you back sometimes.
~The part with "Ole Dole Doff, Kinke Lane Koff, Koffe Lane, Binke Bane, Ole Dole Doff!" may be taking people a while because they keep forgetting there is an "e" in the 1 spot and as such aren't putting the E behind the second "Koff" before Lane. Great puzzle though.
~one pet peve that you struck here was the sending us to external links from ingame buttons without informing us that it would take us there. Not a big deal, but I'd like to know if a button will link me to another site or external spot.
Overall it's a nice quick game, decently executed, well thought out, but with a few bugs that need ironing and if possible some sound options for each action taken by pewdie or the save station.
Thank you for your time in reading this.