Man, harem isn't the way to go. We are mainly here for the game fic (which is going fantastically well btw). The essence of this story is all about making games and Alex becoming stronger to survive in Marvel. Making a harem would take away your attention from the main point.

I have reached chapter 43 and I love the story. My favourites are the ones where mc has no regard for the plot plus he the mc is going the technological way which is new for me. I only hope that after the new York invasion, you don't falter and lose your grip on the story. I have seen most fanfics start going down hill from there. Your update schedule is unstable but I am sure you can improve with time. World background is well laid out and mc is smart and doesn't make clearly stupid mistakes. Especially after taking NZTs, you showed an amazing contrast between the mc before and after taking it BTW. It is just a shame you settled on Gwen being the heroine. I would have loved to see mc later on in the story having Wanda maximoff as his love interest. In my mind it will fit your story with the male mc specialising in technology and the female heroine specialising in magic. This contrast would have made them a good couple in a sense. P.S: author you don't need to limit your mc too tightly on technology. If you can integrate other elements into technology like magic. It could allow the mc to wall out his own path which would be awesome to see. Of course these are only my suggestions, DONT lose your grip on your own story and keep up the good work

Love the story so far and I like how you made it an AU with tsunade being married to Dan and having a daughter. It gave your fanfic its unique setting. However there are a few things to be said about your writing. While your ideas for the story are great, the writing done by the AI is not. The repetitive use of the word determination starts to get annoying the more you see it. I mean I already get he has it but at least put some 'human' feelings into the description and the reasoning behind it. Like you missed the part where mc needs to be shocked when he found he is an AU when he found the existence of Tsuna who shouldnt exist in the first place. The emotions of the mc is one dimensional as if he is a robot with 'determination'. This gets obvious the more you read. Besides your somewhat slow update speed, this might be the flaw I can't just sit and ignore. Other than that, I find the story enjoyable. Keep up the good work.

Thanks for the chapter

Thanks for the chapter. You are moving at a good pace. Keep it up.

You may have overused AI a little in the children's dialogue. I doubt 12 year old boys would have such powerful vocabulary. Other than that the chapter was great. Thank you for the chapter

Thanks for the chapter. I like your story development alot.

Thanks for the chapter. Been waiting for days to see your newest one. Please don't stop this awesome fanfic.

Thanks for the chapter

Thanks for the chapter

But with mc's personality there has to be that catches his eye to be interested in someone with his intelligence being so powerful.

I really love this story. I am in chapter 52 now but I already love it. The pace is perfect for me and the mc is hilarious. Although not a serious story but it is just the way I like it. But it also has its serious moments when he assumes the batman identity bringing the variety in the story. I personally liked his seriousness taking revenge on morningstar for 'a cup of tea'. Just imaging the interaction makes it all the more hilarious. Thank you for the chapters. Please keep up with updates.

I like this idea

First of all, love your fanfic. It is hilarious and engaging. You hardly find novels like this. Concerning how to make the Justice League: if we are going by the mc's character you can have a few options: 1. Have the mc make another funny global move that is more outrageous than before , making it the straw the breaks the camels back, so Justice league is formed to find the mastermind. It would be funny to see the mc's reaction of him laughing at this. 2. You make it that as a consequence of the swapping of earths the crisis energy was absorbed by the 'budding villains' so they have some connections with other versions of themselves in the multiverse which can make them stronger than the original selves overwhelming the other heros since the mc, while impressed, still finds it a nuisance he form the Justice League he can leave these 'cannon fodder' for the heros while he acts behind the scenes. It would also be interesting to see batman's interaction with the heros if he reveals his identity when they gain his trust or when he upgrades their equipment. Of course these are my ideas, please keep up the good work.