![1girl ;d aqua_eyes backpack bag black_hoodie black_legwear blue_shorts bottle breasts brown_hair drawstring fishing_hook fishing_line highres hood hood_down hoodie large_breasts one_eye_closed open_mouth shorts sleeveless sleeveless_hoodie smile so-taro socks solo teeth umihara_kawase umihara_kawase_(character) rating:s score:5 1girl ;d aqua_eyes backpack bag black_hoodie black_legwear blue_shorts bottle breasts brown_hair drawstring fishing_hook fishing_line highres hood hood_down hoodie large_breasts one_eye_closed open_mouth shorts sleeveless sleeveless_hoodie smile so-taro socks solo teeth umihara_kawase umihara_kawase_(character)](/cdn_image/preview/2c/ba/2cbaff2dfe666541b70e93e405aec130.jpg)
1994 Super Famicom puzzle platform game featuring a rubber rope with a hook that can attach to walls and ceilings, allowing you to bounce, swing, and fling yourself about acrobatically. Savagely difficult.
There have been sequels and adaptations for the PlayStation, PSP, and NDS, with the 3DS and PS Vita versions seeing release outside Japan.
The characters in the name 海腹川背 mean sea, stomach, river, and back, respectively, and are in reference to the kitchen saying "Sea fish are fat in the belly; river fish are fat in the back." Umihara is also an existent Japanese surname, but is written with different kanji.