I also had trouble at first, the browser version was appearing super glitchy, in linux. But I found out later that my graphics drivers somehow stopped working and that was probably why. Also the default game size it was trying to make it was also cut off the edges of the screen and such. It took me a while to figure out how to get past the first enemy without dying since it always seemed to be waiting for me in one spot and couldn't jump over it, but I eventually figured it out. Lots of features were added to the game and it was a full playable experience. It's pretty easy to speedrun past all the enemies once you know what you are doing.

Of course I already wanted to throw a portal into any of the walls — the game is literally telling you through its visuals, "I've got all that shit you love right here, now let's start making some inter-dimensional mess." That didn't happen.

It straight up lags, unfortunately you get tired of playing quickly with that kind of frame drop. I only had enough strength to beat the first steel bastard and a couple of his buddies.

Hey! Could you put a PC build of the game out? The browser version is lagging terribly. 

Super well done. I had some performance problems but I don't know if it was the game or my browser/pc fault. On the second stage I could cheese the mine robots by shooting them from far away so hiding them a bit more would make more sense (and I could skip the cluster of mine robots by going over the building and ignoring all of them). But it's impressive, I really like it.