Spikeball mode
Spikeball mode is when a HS (or more rarely, a powerful VS) starts to bounce all around the arena on it's spinner, most of the time spinning on itself as well, like a wheel of spikes. However, spikeBALL mode was first observed with snapper loaded stock HS first, and the snappers tend to flex, creating something more akin to a ball of spikes.
Spikeball mode happens mostly with very powerful VS or all-encompassing HS are tossed into the air. It can last for quite a while and can be frustrating for the opponent, because bots in spikeball mode have unreachable chassis, as well as easily being able to damage the opponent if they reach him while it only being able in most cases to touch the opponent's weapon. Spikeball mode is particularly annoying to gut-rippers.