Compared to the other pilots, like the ones of GD and KOG, Gameoverse's felt like the weakest of the three. While the concept is great, the characters are just not that good. We got a catgirl who's too busy having PTSD to get anything done, a sentient backpack who's also the only competent protagonist, Barney the dinosaur who got his entire character arc done under one episode, and a dolphin who yells a lot. That's just not a good lineup. The antagonists were an improvement over the protagonist, but only a slight one. I also consider this much fanservice for a pilot to be a bad sign. I know I'm talking about Glitch, but none of their other pilots from the last few years had remotely as much fanservice.
Gameoverse's concept has a lot of potential, but considering it is a Glitch cartoon, there will also be a lot of missed potential. The idea of a universe where each world is a different video game and beating the game is a world-ending event, thus our protagonist has to help the villains to save these worlds while the antagonists have to help the heroes, is a definitely good and unique idea; I have to admit. There are tons of settings these video game worlds could use. You could have more kid-friendly settings, like just what we had in the pilot, but we could also have darker ones, like basing a world on Fallout, Half-Life, or Doom. If Glitch wasn't run by cowards, there could even be a Wolfenstein-based episode in which Kit has to help Hitler of all people. This is what I mean by missed potential. You don't need to be a genius to figure out that the creators will not step out of their comfort zone and will prefer generic settings that Tumblr-adjacent people will gobble up.
Overall, I found this pilot to be just mediocre. I don't have the best expectations for this series.