Players can get banned from online games for several reasons, primarily related to cheating and toxic behavior. Using hacks or exploits to gain an unfair advantage is a major red flag and usually results in an immediate ban. Additionally, harassment or abusive language towards other players can lead to serious consequences, as developers aim to maintain a healthy gaming community. Engaging in repeated disruptive behavior can also result in a ban. It's essential to play fairly and respectfully, whether you're enjoying a competitive game or something like an unblocked slope game, to avoid these pitfalls.