For some verbs, both perfective and imperfective versions are used, so for example both powiedzieć (perfective) and mović (imperfective) (to speak, say) may appear in the crossword.
The easy wordsearch uses the same vocabulary as the crossword.
The intermediate Polish crossword includes a wider range of vocabulary.
There are other Word games in different languages.
The two hundred most commonly used words in spoken Polish, Polish phrases and sentences are good places to bookmark and use when you start learning Polish.