At first I thought it was Amaya slot because it has superhero theme and it reminded me of them so I was surprised to see that 1x2 gaming has come up with something like this.
This game has super hero theme, there are many cool looking heroes. Game itself has 5 reels, 25 paylines and a free spins bonus round. There is a really interesting feature called multiplier man. On the main game and in free spins, there are multipliers from 1 x to 5 x. When a multiplier man symbol comes up, your multiplier from 1 x will go up to 2 x. It continues, if in the next five spins you get another multiplier man symbol and so on up to 5 x, if you're lucky. To receive free spins you need at least 3 or more scatters on any winning line. You can get from 5-15 free spins. Then there's another surprise- bonus round that I would call Super Hero bonus. You can trigger it only in free spins round if you get at least 3 bonus scatters anywhere. In this bonus round heroes will fight and you''ll be awarded with coin winnings.
When I played this slot, I had around 30€ in my balance. I played with minimum bets of 0.25€ and I was quite impressed with the payouts, to be honest. I had a few 10€ wins on the main game because of wild card symbol. Wild card is basically the same thing as wild symbol that subtitutes for almost all symbols, except multiplier and scatters and free spin symbols. I triggered the free spins round easily and even many times in a row, then I also one time got the bonus round within free spins and it paid 4€. I don't think this game can bring mega winnings, however, it can boost your balance nicely because bonus round come up more than often and bonus round within free spins isn't too hard to get and it pays quite ok.
Overall I think this is a very nice version about super hero theme, payouts are decent and bonus rounds interesting. Design is really great so overall I would rate this with 9/10.