Super Mario Bros. 2X2

A sequel to Super Mario Bros. 2 for the Nintendo Entertainment System released in 1991. It is a lock on cartridge.

Plot
The night after Mario dreamed about Subcon, he dreamed again about the same world, meanwhile, in the dream world, Wart has returned with a bigger and more evil plan.

Playable Characters

 * Mario
 * Luigi
 * Peach
 * Toad

Normal

 * Shy Guy (walks around)
 * Snifit (shoots cannonballs)
 * Beezos (Fly towards a direction)
 * Pokey (4 enemies tall)

Bosses

 * Pink Birdo (shoots only eggs)
 * Mouser (throws bombs)
 * Red Birdo (shoots eggs and fireballs)
 * Tryclyde (shoots lots of fireballs)
 * Blue Birdo (shoots iceballs)
 * Fryguy (is made of fire)
 * Green Birdo (shoots only fireballs)
 * Yellow Birdo (shoots only electricity)
 * Clawgrip (throws rocks)
 * Orange Birdo (shoots fireballs and electricity)
 * Wart (machine throws vegetables)

Bosses

 * 1-1 - Pink Birdo (on an endless platform)
 * 1-2 - Pink Birdo (on a platform above a bottomless pit)
 * 1-3 - Mouser (normal battle)
 * 2-1 - Pink Birdo (on a platform above some spikes)
 * 2-2 - Red Birdo (on an endless platform)
 * 2-3 - Tryclyde (normal battle)
 * 3-1 - Red Birdo (on a platform above a bottomless pit)
 * 3-2 - Red Birdo (on a platform above some spikes)
 * 3-3 - Mouser (battle with a Spark)
 * 4-1 - Blue Birdo (on an endless platform)
 * 4-2 - Blue Birdo (on a platform above a bottomless pit)
 * 4-3 - Fryguy (normal battle)
 * 5-1 - Green Birdo (on an endless platform)
 * 5-2 - Yellow Birdo (on an endless platform)
 * 5-3 - Clawgrip (normal battle)
 * 6-1 - Green Birdo (on a platform above a bottomless pit)
 * 6-2 - Green Birdo (on a platform above some spikes)
 * 6-3 - Tryclyde (battle with a Spark)
 * 7-1 - Yellow Birdo (on a platform above a bottomless pit)
 * 7-2 - Yellow Birdo (on a platform above some spikes)
 * 7-3 - Mouser (battle with two Sparks)
 * 8-1 - Orange Birdo (normal battle)
 * 8-2 - Orange Birdo (on a platform above a bottomless pit)
 * 8-3 - Wart (normal battle)

Re-releases

 * Super Mario All-Stars (via lock-on technology)
 * Super Mario Advance (via lock-on technology)

Lock-on Features

 * Super Mario Bros. 2 & 2X2 (placing it on top of Super Mario Bros. 2)
 * Toad in Super Mario Bros. 3 (placing it on top of Super Mario Bros. 3)
 * Toad in Super Mario Bros. (placing it on top of Super Mario Bros.)
 * Dr. Toad (placing it on top of Dr. Mario)
 * Slot Machine (placing it on top of any other cartridge)