door
~~~~
door animation
sad noise when not have key
key in inventory
key pickup noise
* NO BONUS message
* back to title screen
* are you sure message on quit


sound:
~~~~~~
click on jump
click on bump head
fancier PC-style sounds

movement:
~~~~~~~~~
* collision detection up (hit head on jump)
* when land from jump, stop walking
walking right into objects, stand back one more (maybe and to mask?)
* can keep walking in collision, just don't move

level1:
~~~~~~~
exit door, blue pillar, red key (all in basement?)


tiles
~~~~~
animated tiles? alternate frame?

laser
~~~~~
hit enemies
hit tiles

levels:
~~~~~~~
mystery level 2

status:
~~~~~~~
keep score, inventory

sprites:
~~~~~~~~
When land, kicks up dust

enemies:
~~~~~~~~
Little robot
green crawly

items:
~~~~~~
red/blue key inverse-R