It might seem ill-advised, but I used a non-pixelated font precisely to make it stand out as something that's not part of the game itself. But point taken, I'll try to do the same differently next time.
Most of my points are rather nitpicky. I see why you chose a non-pixelated font, but maybe one could have used one in a way that would have stood out anyway - by movement, size or some background-banner. Mind you, I've never created a trailer before and I do think that your trailer does what it's supposed to do. The main complaint is that it could be shorter and snappier.
Hmmm. This specific cut is entirely unedited gameplay; the player entering a stage, as it happens in the game. That's why there's no transition, it's the same piece of footage. Perhaps I should cut it and add a transition all the same. It might be a bit tangential but perhaps this indicates I should add an actual a transition in-game.
Is that abrupt cut between the music also in-game? That was my issue here. Maybe if the last note of the first piece had played a second longer, it would have worked better. But as I said, that's rather nitpicky.
As for the game: It definitely looks like something that I'd like to play. Reminds me a bit of Risk of Rain. I like the way the lion scratches down the buildings. That looks like a fun mechanic.