diff --git a/games/against.p8 b/games/against.p8
index f2b27e6..91dadbf 100644
--- a/games/against.p8
+++ b/games/against.p8
@@ -58,41 +58,61 @@ end
 function start_level()
     walls = {}
     walls[30]={{0,10}, {25,30}, {38,44}}
-    walls[40]={{5,15}, {20,25}, {40,50}}
     walls[50]={{5,10}, {20,30}, {45,55}}
-    walls[60]={{5,15}, {20,25}, {40,50}}
     walls[70]={{0,10}, {20,30}, {44,55}}
-    walls[80]={{5,15}, {20,25}, {40,50}}
     walls[90]={{0,10}, {25,30}, {38,44}}
     the_line = 64
     spr_frame = 1
+    opp_frame = 1
     floor = 0
     jump_time = 0
 end
 
-function draw_side(right)
+function draw_platforms()
     for y, platforms in pairs(walls) do
         for plat in all(platforms) do
-            if right then
-                line(128-plat[1], y, 128-plat[2], y, DARK)
-            else 
+            if plat[2] < the_line then
                 line(plat[1], y, plat[2], y, LIGHT)
+            elseif plat[1] > the_line then
+                line(plat[1], y, plat[2], y, DARK)
+            else
+                line(plat[1], y, the_line, y, LIGHT)
+                line(the_line, y, plat[2], y, DARK)
             end
         end
     end
 end
 
+function collide_platforms()
+    local left = the_line - 6
+    local right = the_line + 6
+    for y, platforms in pairs(walls) do
+        for plat in all(platforms) do
+            -- check if there's a platform at this level
+            if floor > y and floor - y < 8 then
+                -- check if either edge of player+opp is between edges
+                if (left > plat[1] and left < plat[2]) or (right > plat[1] and right < plat[2]) then
+                    printh("xcol "..(the_line-6).." "..plat[1].."-"..plat[2])
+                    crush_line = y
+                end
+            end
+        end
+    end
+end
+
+function draw_player()
+    spr(spr_frame, the_line-8, 120-floor, 1, 1, false)
+    pal({[LIGHT]=DARK})
+    spr(opp_frame, the_line, 120-floor, 1, 1, true)
+    pal()
+end
+
 function draw_level()
     -- left side
     cls(0)
-    draw_side(false)
-    spr(spr_frame, the_line-8, 120-floor, 1, 1, false)
-    rectfill(the_line, 0, 128, 128, LIGHT)
-    -- right side
-    draw_side(true)
-    pal({[LIGHT]=DARK})
-    spr(spr_frame, the_line, 120-floor, 1, 1, true)
-    pal()
+    rectfill(the_line, -128, 128, 128, LIGHT)
+    draw_platforms()
+    draw_player()
     -- floor
     rectfill(0, 128-floor, the_line, 129-floor, LIGHT)
     rectfill(the_line, 128-floor, 128, 129-floor, DARK)
@@ -101,14 +121,18 @@ function draw_level()
     fillp(0b0111101111011110)
     rectfill(the_line, 130-floor, 128, 128, LIGHT)
     fillp()
+
+    if floor > 120 then
+        camera(0, -(floor-120)*16)
+        if floor > 128 then
+            floor = 0
+            camera(0, 0)
+        end
+    end
 end
 
 function update_level()
-    spr_frame += .1
-    if spr_frame >= 4 then
-        spr_frame = 1
-    end
-    floor += 0.2
+    floor += floor_speed
 
     -- No button pressed: <
     -- Right button pressed: |
@@ -121,13 +145,34 @@ function update_level()
     end
     if btn(1) then
         dx += 0.25
-        if t() - jump_time < 1 then
+        if t() - jump_time < 0.5 then
             dx += 0.25
         end
     end
     the_line += dx
+
+    -- collision 
+    collide_platforms()
+
+    -- player frames:
+    --  still: 1
+    --  walking: 1, 2
+    --  back slide: 3, 4
+    --  cramped: 5
+    local mod = (t()*4) % 2
+    if dx == 0 then 
+        spr_frame = 3
+        opp_frame = 3
+    elseif dx < 0 then
+        spr_frame = 4
+        opp_frame = 1 + mod
+    else
+        spr_frame = 1 + (t() % 2)
+        opp_frame = 3
+    end
 end
 
+floor_speed = 0.4
 LIGHT = 6
 DARK = 0
 _scenes.title = {start=nil, draw=draw_title, update=update_title}
@@ -136,11 +181,11 @@ _scenes.level = {start=start_level, draw=draw_level, update=update_level}
 
 
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