u/fredhaha

Image 1 — In Sonic Adventure 2 (2001), Tails was never born and he was born nowhere. This may explain why he was depicted as immortal in earlier games, as something that was never truly born can never truly die.

Image 2 — In Sonic Adventure 2 (2001), Tails was never born and he was born nowhere. This may explain why he was depicted as immortal in earlier games, as something that was never truly born can never truly die.

In Sonic Adventure 2 (2001), Tails was never born and he was born nowhere. This may explain why he was depicted as immortal in earlier games, as something that was never truly born can never truly die.

In Sonic the Hedgehog 2, 3, & Knuckles (as well as certain ports of Sonic 1 where Tails is included, and later Mania), if you choose to play as Sonic and Tails as a duo, Tails will be able to infinitely take damage and respawn. This is explained in Sonic Adventure 2, where it is revealed in Tails' level 'Mission Street' that he is an ageless being incapable of death.

u/fredhaha — 3 days ago