A tiny bit at a time I am gaining ground on DDR Supernova. Today I got two or three more Showdown cards -- EX on Phantom and Nitro, Diamond EX on Phantom -- and beat the Visual Blast course. I'm more proud of the course than I am the showdown cards. It's 6 songs rated 6-7-7-8-8-8. That's nine minutes of activity, the last 5 involving frequent excursions into thoroughly anaerobic territory. Even that wouldn't be so bad except that the last song (Flow, Jammin Ragga Mix) has two or three groups of about 10 steps in 2 seconds each. Miss more than one or two of them and it's game over, bud. Well, today I finally beat it. I think I made it through the last twenty or thirty seconds on sheer willpower because I sure didn't have any kind of rhythm going.
Best of all, beating that course unlocked three of the 10-foot boss songs. Now I can open them up in Training Mode and start taking them apart.
Now, if you'll excuse me, I must go guzzle a huge amount of water to replace what I sweated off.