Prototype 2 FULL Walkthrough No Commentary Gameplay Part 1 Longplay (PC) [1080p60fps - YouTube]
Upgrades, over 11 x more durable than start of game, 1.21 x stronger, over 9 x faster.
This one will have much more concrete feats, i know this game better, it will have power scaling as well.
Your finishers can one shot tanks and helicopters.
5:45 Alex Mercer tosses an M-1 Abrams dozens of meters (Power scales with end of game Heller).
8:21 Alex Mercer one shots a Helicopter (Power scales with end of game Heller).
12:40 One shots several infected (No upgrades).
13:34 Withstands a massive explosion (No upgrades).
15:00 Withstands the same explosion with even less damage (No upgrades).
35:05 Rockets can destroy a tank in 3 shots (later 2), however, Heller can many times that 1:14:36 (including defensive powers), said missiles contribute to a large church collapsing, 1:34:20 (it should be of note that it does collapse in the story, but is there during game play).
1:30:09 Withstands point blank missiles, said missiles will 2 shot a tank.
1:54:46 Goes toe to toe with the Phase 2 soldier (even though it has much higher durability than you, it still has similar strength levels 1:58:52), this soldier is a normal Phase 1 with start of game Heller's DNA, so it's pretty damn strong, especially since it was designed to kill start of game Heller 2:04:40. It should also be noted that rockets bounce off the Super Soldier 1:55:37, Heller can still hurt it though.
4:34:40 Can withstand heat high enough to incinerate metal barrels (they dissapear upon next usage, which supports that).
5:42:08 - 5:45:14 Can trade blows with the Goliath, which cleans the street by charging, and one shots tanks. Goliaths can also shake the ground hard enough to shake apart bases.
Prototype 2 Walkthrough - Mission 28 - Operation Firehawk - YouTube 2-3 Thermobaric missiles will destroy this bunker, yet Heller's charged hammerfist attacks will heavily damage it.
5:55:55 Temporarily Increases his hammerfists to the point where just the shockwave kills Orion soldiers, tanks, and Brawlers.
6:16:25 Needs no introduction, Heller's devastator covers New York, it also absorbs all infected, which there are almost 1.5 million of.
6:16:57 Tosses a door, likely steel or titanium.