Sure thing!
Papumba is ideal for travel and long waits. Just tap on the "down" arrow present on each game/content cover, and it will be downloaded into your device. You can download as many games/content as you want! Just keep in mind that your device must have enough space to support them ;)
Hint: if a game/content was not opened in 28 days, it will be automatically removed from your device, in order to avoid taking up space.