I have never seen a Whitehole that big in this game before, probably because so many people don’t know about it kinda disappointing lol, barely pushed anything
you need to join the modded bopl battle discord server and download a file from there I think. There might be tutorials online on how to do it I'm not really sure because a friend helped me mod mine and I'm a forgetful person. Hope this helps in any way!
sadly it's only available on steam. However, I think the creator still has the demo version up for free as well so you can try the game with less power-ups to see if it's worth the money. I personally think it is but it's totally up to you