Ok, so let's say that the Hulk was as pissed as he was when Rick Jones was sliced open by the giant grasshopper (Miek), and Akuma was all fired up as well.
They charge after eachother, let's say that the Hulk isn't able to lay a finger on him, and Akuma goes to town hitting him with a terrific 100 hit combo that's does absolutely nothing to him because of his healing factor, and the fact that his hide gets tougher as he gets excited.
Back to the Rick Jones giant grasshopper (Miek) incident, in WWHulk#5. The Invisible woman had to throw up her forcefield, so that no one was injured by Banner's explosion of sorts. If you noticed, The Hulk really didn't have to touch anyone at that point for them to be in danger.
Another scenario is The Hulk's thunder clap it's flattened out building's, and can and has been used as a long distance attack. How about the Hulk's ability rip up huge chunks of real estate, or just the fact that he could rip the entire city block up, with Akuma on it and throw him into another state.
What does Akuma do when Banner grabs hold of the street and turn it into a tidal wave? Or stomps the ground causing a seismic event off the scales? How doe Akuma stay on his feet? Let me tell you what happens.
This is how it would go, The Hulk stomps on the ground (as seen on panel iirc), Akuma falls down stunned or worse, and the Hulk kicks him from New York to Chicago.
10, 09, 08, 07.....etc... etc.... GAME OVER!