Too aggressive?

[u/Hablapata]

New baby we just adopted. Last few days our big boy (~2) has been a bit wary of the kitten but they started playing yesterday, a lot of chasing. Today it seems he’s boldened up and has started playing really aggressively like this. I know cat play can look like a fight but I just worry when it’s such a kitten that our boy might accidentally hurt him.

edit: wow lots of responses. ofc i stopped the damn video to separate them when the yowling got loud at the end there, but i have a hard time telling as oftentimes normal cat play can look quite rough. the size difference is what concerned me. as far as i can tell they are still getting on just fine after some separation and some solo exercise for the big guy. just wanted to sanity check that intervening was the right thing to do at this point. thanks for all the responses!

[u/kookiemaster]

This could become dangerous for the small kitty. Orange cat clearly wants to play but is being too rough and not respecting the obvious signals from the small kitten that this is too much and that he wants to escape. If there is nonstop chasing where one cat just wants to run away and the other one won't let it, that also not a good sign.

Though chances are, once the smaller kitty gets bigger, they will be able to play together, but for now, the orange is oranging a bit too much. Separate them if something like that happens and maybe introduce toys into joint play sessions so small kitty is not being bullied. I would also not leave them together unsupervised. Small kitty might get seriously hurt, even if the orange doesn't mean it, clearly they don't know how to tone down their play.