This all started when i saw a video of this game back 5 years ago.
This is from where i saw how this Youtuber enabled the Maniac mode: https://youtu.be/lCcvcraQRnU?t=149
(If it doesn't redirect you to the proper time, skip to 2:29)
Since i re-watched the same video, i've tried to search if there was some tricks/hints for this game but i couldn't find anything, so i had to discover this by myself.
After many presses of the buttons, i've finally found the combinations for these modes, these not only work for this easy song that i got, it can work with any other. (I still don't know how you can get the harder different songs, is it difficulty-based?)
I couldn't do all Perfect, during "Another" (1:32) and "Maniac + Max" (4:50) i've messed up.
This video is not meant to play Perfectly, it is only to demostrate the Extra & Faster modes that i discovered.
Here are all the Extra & Faster modes you can enable:
[Note that this all must be done by Holding the Start button, it works for any of the 3 players.]
Another = Start + Player 2 Red
Maniac = Start + Player 2 Blue
Max = Start + Player 1 Red
MaxMax = Start + Player 1 Blue
It's also possible to combine the different modes together.
These are the possible combinations:
Another + Max = Start + Player 2 Red + Player 1 Red
Another + MaxMax = Start + Player 2 Red + Player 1 Blue
Maniac + Max = Start + Player 2 Blue + Player 1 Red
Maniac + MaxMax = Start + Player 2 Blue + Player 1 Blue
Since this game has been dumped for MAME 0.221, there's isn't too much details for this game, i hope in the future everyone will start filling more details as well with more hints and/or tricks.
Emulator used: Arcade64 0.226
Time stamps for the video:
0:00 A note before starting.
0:05 "Normal" Gameplay.
1:28 A note that i discovered the modes.
1:32 "Another" Gameplay.
2:26 "Maniac" Gameplay.
3:19 "Max" Gameplay.
4:07 "MaxMax" Gameplay.
4:50 "Maniac + Max" Gameplay.