I picked up Action Loop as well as I enjoy Puzzloop 1&2 arcade ROMs in MAME and it's quite varied with many single and multi-player modes; multi-player modes can be played with/against (there's co-op options) AI-controlled players, so you can even play those by yourself. No online, but the sheer variety of game modes don't make it feel lacking and I've never regarded Puzzloop as a battling game anyway (although this one does have special battle modes).
1000 points well spent!
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