I'd like the grates if they did something besides destroy non-bears. It's not so much strategy as it is good timing and luck. If there was a good way to defuse them, like an ice shot, I'd be cool with them. All I can tell is that they either explode with AE attacks, they explode if you end up targeting them, or they just explode at random intervals. Also, they're ERRRRVYWHAR. Not just bottlenecks and danger-spots. I may also respect them better if I was using a more powerful tablet or phone.
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