diff --git a/README.md b/README.md
index c6949d5..3f7d639 100644
--- a/README.md
+++ b/README.md
@@ -10,19 +10,19 @@ move middle-click functionality to left-click instead
 
 add support for mobile devices/1-button mice (probably hold down to flag a mine)
 
-setup screen for difficulty/board size options
-
-scoring system (no. rows cleared/no. mines cleared, possibly timer)
-
-game over screen/restart button
-
-make flags permanent to prevent cheating?
-
 save game using html5 local storage so player can come back later
 
+make cleared columns slide left?
+
+possibly add way to remove clicked mines (powerup/clump clicked mines together to destroy/get clicked mine to top/left of screen, etc.)
+
+Need to test on mobile devices etc.
+
 ## bugs
-Game adds too many rows and they appear off the bottom of the screen
+the player can cheat under certain conditions; if there is only one tile left on a row, the player can flag it and if it is a mine, the row will clear. if not, the player can unflag it and click it. not sure how big a deal this is really. 
 
-middle-clicking causes middle-click-scroll to happen; this is probably related to above issue
+the game adds too many rows and then deletes the extra rows, instead of just adding the correct number of rows in the first place. this is due to the row clearing method nesting and adding the new rows several times as a result
 
-this has been slightly fixed but in a hacky way
+the scoring system is wrong due to the above problem; if any tiles cascade during removal of rows, the score is added again for each step of the cascade leading to vastly inflated scores
+
+game is apparently broken in Safari (not sure which version)