>>715678370>kanji is the final bossngmi
the real final boss are onomatopoeic and mimetic sounds and kana-only words, as you can't infer what they mean from anything
pittari, kikkari, tekkiri, kossori, garandou, pokkari, dondon, ujauja, gisshiri, bacchiri, kankan, sukatto, suratto, guzuguzu, guragura, ujiuji, mojimoji, gajigaji, peshanko, pikopiko, gangan, gyutto, tonto, kirakira, gyafun, washawasha, dokkiri, etc.
jukujikun suck too though (e.g. ainiku, kenage, karada, yagi, koma, komame, azuki, ikuji)