Thumper 9+ (1.047.350, no grade)
I did one run
0:00 - 9-1+
0:43 - 9-2+
1:19 - 9-3+
2:30 - 9-4+
2:58 - 9-5+
4:00 - 9-6+
5:17 - 9-7+
6:43 - 9-8+ - Boss
8:05 - 9-9+
8:56 - 9-10+
9:52 - 9-11+
10:42 - 9-12+
11:09 - 9-13+
12:54 - 9-14+
13:26 - 9-15+
13:55 - 9-16+
14:33 - 9-17+
15:30 - 9-18+
15:56 - 9-19+
16:49 - 9-20+
17:18 - 9-21+
17:51 - 9-22+
18:28 - 9-23+
19:45 - 9-24+
21:14 - 9-25+
22:17 - 9-26+ - Final boss
24:38 - 9-27+
25:26 - Infinity+
26:25 - Results