nice game,
i like the concept of the game, however there are quite a few issues which are:
jumping - when you jump as long as you touch the blue tiles you can infinity jump which makes every level easy.
picking up words - i noticed that after you complete a level the next one will have the previous levels word pickups which is problematic.
the background - the background made me nauseous which isn't very good for when playing, i would suggest sprites that don't pop out so much like what you have for the background, with this i think a more simple pattern would work much better for this game, especially for some variety.
walking - when walking i noticed that you walk faster when going to the right than the left which makes it hard to go through the level especially when jumping its very noticeable, this also pairs with the nauseous feeling i had.
shooting - the shooting sprite doesn't really move, and is also very big, and can be spammed, which means i crash the game if i keep spamming it, and it doesn't do damage to the enemies, but that's fine since you don't really need to confront them.
the music was really nice however, and i liked the concept of having to pick up words in a certain way which makes you think about how your going to play the level, and avoid the other word pickups.
overall its a good game, that has a few easy issues to solve.