Vocabulary consisting only from characters you are able to read
火力
かりょく
heating power, steam powermix
よじ上る
よじのぼる
to climb, to clamber (over, up), to scramble (up), to scale, to claw one's way upgodan, verb, vintrans
山
やま
mountain, pile, heap, climax, critical pointjlpt5, shizen
I was playing games the whole day.mix
下る
くだる
(1)to descend, to go down, to come down, (2)to be handed down (of an order, judgment, etc.), (3)to pass (of time), (4)to surrender, to capitulate, (5)(often in neg. form) to be less than, to be i godan, jlpt3, verb, vintrans
上
うえ
above, on top of, up, upper part, surfacejlpt5
二人
ふたり
two persons, two people, pair, couplejlpt5
下らない
くだらない
(uk) good-for-nothing, stupid, trivial, worthlessadj