Conflict with Spider-Man
One Small Break
For more information see: One Small Break
Fusion's son Francis Jeremy, "Frankie" to his family, died in an attempt to swing off a building just like his favourite superhero, Spider-Man. In anger and sadness, Fusion blamed the Wall Crawler. Fusion used his powers to attack him and the public at large. He eventually uses his powers to snap Spider-Man's neck (this was just a "suggestion" which fooled Peter). However, Spider-Man was eventually able to see through this ruse and defeat Fusion, who turned out to be such a bad father, he got his own son's name wrong.
For more information see: Operation: Octopus Fusion catches Doctor Octopus, working in his company under an alias and seemingly manipulates him into helping him create prosthetic limbs that can be used to mind control their users. This is all leading up to stealing a government project called John Hancock, a devise that can track radiation signatures from space. Fusion plans on using this to track Spider-man, but Doctor Octopus double crosses him and beats Fusion to a bloody pulp. Fusion is barely alive when Spider-Man shows up and calls the villain an ambulance.
Conflict with Thor
Fusion has taken 50 people hostage during a "Billy Goodman: Choose your path to success" seminar. He straps bombs to all of them and created a series of fail safe switches to in sure the New York Police department can't intervene. He made one request, to speak with Thor the God of thunder. Once Thor shows up Fusion asks him one question, "Can you bring my son back?"
Thor explains he can not. If the gods stepped in and did these things people would lose free will and be nothing more then puppets for the gods. Fusion believes Thor is bluffing and demands the hostages to leave. He then dares Thor to try to save him and prove that the Gods can step in, but Thor is pauses too long and Fusion blows up the building with himself and the god of thunder inside.
Thor is unharmed but Fusion seems to be incinerated, but Fusion has the power to make people believe his illusions (even super powered beings) so it is unknown if this actually happened, or if this was just another illusion.
Through Fusion's suggestion power he can:
* Suggest an event to happen, and it will. He can manipulate the thoughts of others into making them do what he wishes.
* He can make himself look like any person (normally taking on a superhero's form). Though he does not grow to fit the size of the person he is imitating this power is just an extension of his suggestion abilities. When fighting Spider-Man, Fusion could appear to be in the form of the Hulk but he never really had any of the Hulk's strength.
* Fusion also possesses a rod which he can make appear to be any object. The rod is coded to his voice; when fighting Spider-Man, he caused it to self destruct after Spider-Man stole it from him.