them.<br>
Levels in the transition area between light and ghost forest, however,
follow a different design: Those levels will have a light sector and a
-very similar looking ghost forest sector. Troughout the level, Tux will
+very similar looking ghost forest sector. Throughout the level, Tux will
need to travel between the sectors to solve puzzles and find his way
through the level. Transition between the worlds can happen by either<br>
a) actively walking through a portal,<br>
</small><small><br>
<br>
</small><small>Powerups:<br>
-In Milestone 2 in general, the favourite way of enhancing Tux'
+In Milestone 2 in general, the favored way of enhancing Tux'
abilities will be through level objects that temporarily grant Tux
special abilities (see Level Objects section for more details), rather
than permanent powerups like fire and ice shots. Those will still be
there, but they'll remain relatively weak, so they don't get in the way
of level design. An ice shot will be implemented, the fire shot's
-behaviour will be improved [need more detail here]. The fire shot gets
+behavior will be improved [need more detail here]. The fire shot gets
a new ability to burn through specific tiles to reveal paths. These
paths, however, should contain only bonus items like coins; it must be
possible to finish a level without needing the fire powerup.<br>