: This Grand Prix mode addition requires players to scramble for and hold specific "Checkpoints" on the stage. Holding these areas provides points every 10 seconds.
: A massive influx of Konami guest stars joined the roster, including Solid Snake Bomber and Naked Snake Bomber (both voiced by original actor David Hayter ), Raiden Bomber , and Bill and Lance from Contra .
While v2.1.1 is a stability patch, it supports the substantial content released during this phase of the game's lifecycle:
: Three new Metal Gear -themed stages were added specifically for the Checkpoints rule, along with accessories from the Contra , Origami , and Cat series.
: Fixed miscellaneous small bugs that emerged after the v2.1 launch.
: The patch lifted "mercy invincibility" in Grand Prix as soon as a player places a bomb and adjusted special ability parameters for several characters, including Shiori Fujisaki Bomber and Dracula Bomber . Key Stability Fixes Version 2.1.1 specifically addressed:
