"SENTINEL FORCE!" —Sentinel, performing a Sentinel Force in Marvel vs. Capcom 3 Sentinel Force is one of Sentinel's special attacks in X-Men: Children of the Atom, Marvel vs. Capcom 2 and Marvel vs. Capcom 3. Sentinel summons three mini-Sentinels that fly toward the opponent and ram them, the mini-Sentinels exploding in the process. The light version of this attack is angled downward, the medium angles upward, and the heavy version (also know as Air Raid or Bombs) sends 3 mini-sentinels overhead that drop 4 bombs each across the stage, and the opponents also take damage if they are struck by the flying mini-sentinels. The medium and heavy versions of this attack are assist attacks for Sentinel, and the medium version is the default for the simple input.