Tracklist Hide Credits

1	–Megumi Hayashibara, Shinnosuke Furumoto	What's Up Guys?	4:12
2	–Masami Okui, Kasumi Matsumura	Mask Arranged By – Toshiro YabukiLyrics By – Masami OkuiMusic By – Masami Okui	4:24

Notes

Single released for the Bakuretsu Hunter anime series. The title track was used as the opening song of this anime, and the B-side track was used as the ending song of the same series. The single reached #33 on the Oricon weekly charts, charted for 11 weeks, selling 82,360 copies.