Complex sentence: However, the player chooses either Sonic the Hedgehog or Knuckles the Echidna at the title screen; unlike in "Sonic 3", Tails is not available, and the player cannot control two characters together or use any other multiplayer modes.
Split into simpler sentences: However, the player chooses either Sonic the Hedgehog or Knuckles the Echidna at the title screen. Unlike in "Sonic 3", Tails is not available, and the player cannot control two characters together or use any multiplayer modes.