Competition-breaking strategy? (i.e. snaking)
I'm not 100% sure about this, and I don't want to bring it up since it seems like I'm the only one who uses it (that I've noticed), but everyone's gonna figure it out eventually...
I THINK I found a strategy/exploit that, when used against players who don't know how to do it, leaves absolutely no chance for them. I just call it "boost-jumping". Like the name implies, you just boost for a second and then jump. The sliver of boost you used puts you at full speed, and then jumping lets you retain that speed through mid-air momentum, so if you do this repeatedly, you can travel huge distances at max speed using very little boost. I've noticed I can get an insane amount of max-speed time by conserving my boost this way, and leave most players in the dust. Some maps, like SS Royale, you can attain max-speed for most of the map.
It's kind of like snaking was in Mario Kart DS. Players who don't do it stand no chance against those who do. I've only been playing a few days, so I might just be misunderstanding a mechanic somewhere, but as long as you retain your max speed in mid-air, boosting can be exploited like that.
The only fixes I can think is to either make you lose speed in mid-air, which would be counteractive to the grappling game, or to make boost acceleration to full-speed much longer so that players gotta use significant boost to reach max speed, which would make standard ground boosting way less effective.
EDIT: A third fix would be changing the boost mechanics to uses rather than a meter. Players use a boost and they gain the acceleration for a short period of time. This way, players choose tactically when to use their limited uses, they can get more by running through the gates, and they can't "ration" the boost meter to exploit the strategy I detailed above. With a few uses (three maybe?), players still have the choice to pop all of them back to back, similar to how some players choose to use the full meter at once, or they can use them sparingly like some players currently do with their meter. I think this is less game-changing than the other two suggestions, I think it would mostly keep current strategies intact while eliminating the exploit.