Ikachan review. Classic Game Room presents a CGR Undertow review of Ikachan for Nintendo 3DS developed by Daisuke "Pixel" Amaya and published by Nicalis. Ikachan is a dense mass of pixels and fish puns, with cave-exploring adventure and sea urchins held under the oppressive thumb of a well-meaning but put-upon fish. As a tiny squid in a great big sea, you have to figure out why you're there, how you can fix things, and how to defend yourself from the various forms of marine life that call the cavern home. Problem is, a series of earthquakes continue to alter the landscape, cutting the local creatures off from their food sources. And they're hungry. This video review features video gameplay footage of Ikachan for Nintendo 3DS and audio commentary from Classic Game Room's TJ.