jhost

Use WASD to move, when you get goop you can click to throw it. Different colours of goop do different things.

Don't stay in the light for too long!

Just a heads up, these lights are super intensive and will probably break everything in the web version. If you want to try a version that doesn't slow to a crawl, there's a PC build as well you can download, but I can't gurantee it'll work on all machines.