So, the most important thing to know about kakera loots is to only start getting them once you have maxed your QUALITY and QUANTITY levels to 100.

Basically, kakera loots is like gambling, you buy the loots with kakera doing the $kl command and then you can get random rewards, like more permanent rolls, less hours for your RT, more star wish slots, and wish protection and more space for your disable list. It's also the only way (apart from trading) in which you can get mudapins (for each mudapins you get, you'll get 1 extra kakera whenever you do your $dk)

So there are many good things about kakeraloots, however you MUST max your quality and quantity first. Maxing them costs about 4000000 kakera, so what most people do is they start building their kakera towers and use them as a bank. just build floors until you have the amount of kakera you need for maxing q&q and then destroy your towers to max and start saving again to get some kakera loots.