_Mountain Goat Mountain_ is a fast game where the player helps a goat ascend
an endless mountain made up out of blocks, designed with the diagonal movement
of the classic Q*bert. The game is almost the reverse of the contemporary and
slightly earlier released Down the Mountain that uses a similar design and
visual style. There are different control schemes, but the default one splits
the game vertically control-wise. Swiping the left or right side makes the
goat jump that way and the diagonal direction of the swipe determines whether
it goes up or down.

There are various hazards to avoid such as boulders, logs, snowballs, gaps,
water, crumbling blocks, lightning, trees that block a direction etc. Jump
pads can be used to cross large gaps, springs provide temporary
invulnerability and coins can be collected as the single currency in the game.
Next to hazards, the player needs to prevent the goat from dying by eating
vegetation regularly, forcing quick gameplay to keep moving. A meter appears
and depletes when the goat gets hungry. When the goat dies, the game is over
and needs to be restarted entirely. The environment is randomized with each
session.

There are many different types of goats that can be unlocked. This is done
through chests, provided regularly or found in-game, or by spending 100 coins
to open a mystery crate. Different goats do not only provide an aesthetic
variation, but can add very different changes to the environment. The dubstep
goat drops a bass with every jump, the rain goat slips and slides, the
blizzard goat needs to travel through a snowy environment, the samurai goat
adds an Asian theme to the game etc. The game is free-to-play with in-app
purchases for certain goats, even though they can also be unlocked through
gameplay. Additional coins, next to those found in-game, can be earned
regularly by watching video advertisements.