I'm completely baffled by this one. let me start with the end-of-game stats: I have the replay for this very run on me (looks like it's a cheated one anyways, so I won't UL it right now), and I'm confused as to HOW THE [][][][] THAT ISN'T GM-RANK?!?!?!? explanation, please?
I'd figure it'd at least go to 199 before stopping (which is... lemme look it up... MasterM, one below GM) and yes, you read right: 2:41:00 [not counting invisible roll]
only reason I'm not: it looks like it's cheated. then again, it may actually be possible to get 900+ I-blocks in a row.
I'll call this a TAS. You didn't top out during the M-Roll did you? I'm sure Hebo lowers your grade for that. Anyhow, check the rankings to see if it is an MM. There's a rare glitch that displays your grade as one higher in the rankings or maybe one lower after a gameover (Not sure which).
meh, I tend to discard TAS's for competitive purposes. I mean, TA's artificially increases your performance beyond what is humanly possible (whereas "Tool-Hinderer's" as I call them artificially decrease your performance). anyways, dug through my rankings (since whoever did it was using my compy - The replay fileinfo has my username on it) and, indeed, there is a "NOP" ranked MM with those stats. ...yeah, that's gonna bite for a while (for some reason, I can't reset rankings >.<), although I really wonder if GM is possible under the same conditions as it is on arcades - when it's the passmark for a Promotional Exam.