The Problem
Level 25 (Motorbike) cannot be completed on Sepolia because of EIP-6780.
The SELFDESTRUCT opcode no longer clears bytecode for contracts created in a previous transaction. Since the Ethernaut verification likely checks for codesize == 0, the level remains "unsolved" even after a successful exploit.
Evidence
Instance: 0x1F9D873c235dd2a3eDb49f787FE5DD778b82Ee67
Exploit Tx: 0xea4351eacb2eb9b18ddc0f2f4cdc2f0517e05a5d2bf18341a4de0202bd76eb55
Result: Etherscan shows SELF DESTRUCT trace, but codesize remains > 0.
