Tunnel Rhino

Tunnel Rhino, known as Screw Masaider (スクリュー・マサイダー) in Japan, is a Maverick from Mega Man X3. Formerly he worked as a miner in an energen crystal mine, but upon going to Dopple Town by invitation he became a Maverick. Now under Doppler's orders, he occupies a rock quarry and uses his Tornado Fang (his drilling weapon) for destructive purposes. Acid Burst is his main weakness, but it takes practice to wield properly and Rhino is invincible while he flashes.

Zero, in Mega Man Xtreme 2, can take him with Earth Gaizer.

Data
Mega Man X3 stats:
 * Power: 4200rp
 * Speed: 8000rp

Stage enemies
Enemies in Tunnel Rhino's stage from Mega Man X3:
 * Sub-boss: Hell Crusher
 * Drill Waying
 * Drimole-W
 * Ganseki Carrier
 * Iwan De Voux
 * Wall Cancer

Enemies in Tunnel Rhino's stage from Mega Man Xtreme 2:
 * Drill Waying
 * Drimole-W
 * Ride Armor

Trivia

 * Tunnel Rhino is one of only three Mavericks (the others being Ride Boarski and Dark Mantis) weak to Zero's Giga Attack that doesn't exhibit the ability to fly.
 * Tunnel Rhino shows some similarities to Drill Man, a boss from the Classic Mega Man Series. First of all, they both have drill-like hands (except Tunnel Rhino has one, whereas Drill Man has two), both characters' stages take place in a quarry, and shoot drills out of their "hands". Unlike Drill Man, however, Tunnel Rhino's drill attack does not explode upon contact with the player, and he cannot burrow underground and pop up under you (although in the PSX Version of Mega Man X3, in his intro movie, he is moving through the ground and then burrows out of it).