Honestly I think they all make enough sense. They just make a slightly odd kind of sense, which is basically the show's whole deal.

We've covered how Snipe is obvious for one, but protagonist and all around heroic guy Ex-Aid getting an upgrade inspired by Super Robot shows seems straightforward enough to me. Brave's Level 3 form is clearly meant to be a deliberate 180, and the show even makes it a point that a Rhythm game doesn't really suit him. As for Lazer... okay, this one is admittedly kind of a cop out but his whole thing is being different and weird anyway, so going from a bike to a samurai is arguably the perfect kind of nonsense for him.

They aren't if you're paying attention to the show. What the OP described is utterly boring and predictable. Glad they didn't go that route.

TBH, a Samurai Knight is kind of redundant, but a Bike Samurai is absurdly awesome (shout-out to Gaim lol).

See, I don't think it's too far off. Because he gets a full face-covering battle mask and almost an additional full suit of armor, minus only the chest plate and skirt. Given Japan's history, I doubt anyone questions suits of armor being associated with a Samurai theme.

I mean, yes. You could argue that basing him off of a transforming robot seems like more of the given route. But let's be fair, most Japanese robots are based on Samurai in one fashion or another anyway. :lol

Okay I get what you're saying and won't lie I think brave should have gotten a different form as well but as for the gekitotsu robots thing. I think it would really only fit with Ex-aid because both it and mighty action x are fighting games.

Also I think they wanted the contrast with both Brave and Lasers second forms but I could be wrong.

Mighty Action X isn't a fighting game, it's a platformer.

Yeah, but suits of armor generally go ON TOP of your limbs, not ARE them, you know? Still, I'm just wondering what spurred that little bit of creativity to be perfectly honest.