kaseli, can you be more specific with which mode(s) you were playing, the level you made it to, and whether you died or the game ended? it's strange that you didn't get a rank...
well reading your wiki, i play Master-G4 (on TI-World), because it says it should be grading me...but i can only play to 500 lines before it ends (with the fireworks and congratulations) am i not being quick enough perhaps?
Yeah, there's a time limit you need to beat in order to pass 500. G4 should display your grade after you top out, similar to TGM3. The 1-S9 onscreen display only occurs for G1 and G3.
and it's level 500, not 500 lines. your level increases every time you place a piece and/or clear lines, except if you're at level 99,199,299 etc., when you need to make a line clear to advance.