Here are some cheats and tips for the game Tetris Blast.
Fight two mode boss battle:
Press B(5), Start at the title screen.
Alternate music:
Press Start, Select during game play.
Level Password
2 ZFFFJJJF
3 B/MMLLKB
4 XSDDGGDM
5 KCWGLLHK
6 VG.LJJDM
7 K.TDGGMF
8 XZSCDDKK
9 DFMYLLDD
10 YGCPDDHL
11 GVMYLLCJ
12 V/JVDDGK
13 CJXTBBCF
14 !L.YLKKL
15 LXWTBMMB
16 VSRPDCCH
17 KBCDTFDF
18 XDFGYKJF
19 F!CDTFCM
20 TTGHPMJB
21 DBVGYKGD
22 .JRCRCKB
23 CY/BPMHF