Eh, I'll vote.
Going through Arthur's powers:
Power Absorption: Not sure it would work on Han, definitely not on his game mechanics, but I doubt he can get into arms length to begin with.
Regen and Immortality: Han has a dozen different ways to incap people, but he can absolutely vaporize all of arthur, brain and all.
Electricity Manipulation: Han has it too, so I doubt it is game-changing.
Poison: Han should be able to heal it, and would teleport away the moment he notices it.
Telekinesis: Han has too, again, but this time it seems to be simply better too. Unless Arthuir can choke someones brain, which I doubt.
Mind, Dream and Memory Manip: Han resists.
Teleportation: Han has too intensifies.
BFR: Across time? That would be nice to specify a bit more, because that can mean a heck of a lot. If it is back in time, it doesn't mean too much beyond giving Han time to smack him harder.
Radiation: Han's healing should keep him long enough to one-shot or something like that.
Info Analysis: Han has too fra
Invisibility: His enhanced senses are good enough to counter at this point.
Intangibility, meet non-physical interaction.
Han could point at him and incap, crush with telekinesis, homing danmaku to hell, mind-hax, etc..