The PSN Blog revealed this morning that you can play in the sort of prequel to the original Amplitude, FreQuency. In the newly dubbed FreQ Mode they track goes into the games tunnel style instead of the flat style we're all use to.
The post also reminded us of the new Team Play option, co-operative Amplitude? This allows 1 vs. 2, 1 vs. 3, and 2 vs. 2 matches.
The game drop Jan 5 on the PSN and earlier for those who paid a special tier on the Kickstarter.