Play Super Smash Flash 2 unblocked. This game has been in constant development since 2011. Part 2 features a cool crossover brawler that include memorable characters from classic arcade games and popular anime. Choose from 24 characters including Sonic the Hedgehog, Mario, Goku, Mega man, and much more. Play the full version of Super Smash Flash 2 here and be amazed. Play Super Smash Flash 2 unblocked is rated E for everyone. How to play. This game has many of the super smash bro mechanics, such as, shield, dash, Up+B, smash attack, items, and many more. Player 1: WASD: move U: Grab I: Shield O: Attack 1 P: Attack 2 1: Taunt Player 2: WASD: move 5: Grab 1: Shield 2: Attack 1 3: Attack 2 4: Taunt 0: Pause double space to start battle. Super Smash Flash 2 unblocked is rated E for everyone.