2.  Burrito builder   (regular -AR-ER-IR verb conjugations)

http://www.learnalanguage.com/popup/main.php?language=spanish&source=PresentTenseAR&lessonD=burrito-builder&ref=http://www.learnalanguage.com/learn-spanish/spanish-verbs/present-ar.php

3.    Cram.com verb game:    

https://www.cram.com/flashcards/santillana-verbs-review-spanish-1-10114869

4.   Unidad Preliminar 4 Vocabulario:     https://quizlet.com/454241055/unidad-preliminar-4-flash-cards/