So I found this glitch today while experimenting with the game and I found out a glitch that uses play/loop to allow you to become invincible in the bloodstream sections. This works in all sections, which helps cut down time on trumpet/crumpet’s bloodstreams.

When your transitioning from GE to bloodstream section (the bloodstream explanation screen), right click the game then click the “play” option. Immediately after you’ll notice a “Get to the bloodstream” mini-screen appears. When it does, hold the up and right arrows, you will hear the bloodstream music (technically it’s dog ears music) play. Click continue (while still holding the up and right keys), and you’ll notice that the B-cells and macrophages are moving up out of the map. This is because the game thinks your slightly higher then the bounds of the map, which messes with the B-cells and prevents them from shooting you. Keep holding up and right until you are almost at the end, then progress as you usually would.

Something to note: if you stop holding the up key, the B-cells will start attacking you normally. If you stop holding the right key, the B-cells stop spawning entirely (This has only occurred once for me, I don’t know if it’s something you can do consistently)

MAJOR UPDATE: Found out you don’t need to do any of that, you literally just need to hold up and right.