diff --git a/README.md b/README.md
index 2c69ee6..02596d0 100644
--- a/README.md
+++ b/README.md
@@ -141,18 +141,18 @@ That will generate the rom at `/build/portal64.z64`
 <br />
 
 ## Current New Feature TODO List
-- [ ] Change default controls
 - [ ] investigate failed portal hole in test chamber 04
-- [ ] increaes collider height
 - [ ] ball velocity in test chamber 11
 - [ ] clear sleeping object physics flag so buttons in savefiles remain pressed after loading
 - [ ] rumble pak support?
 - [ ] Investigate crash after falling into death water on test chamber 8
-- [ ] Add particle effects (shooting portal gun, energy pellet)
 - [ ] Add auto save checkpoints
 - [ ] Correct elevator timing
 - [ ] Adding loading notice between levels #45
 - [ ] pausing while glados is speaking can end her speech early
+- [x] Change default controls
+- [x] Add particle effects (shooting portal gun, energy pellet)
+- [x] increaes collider height
 - [x] test chamber 11 is broken
 - [x] test chamber 4 has an inverted indicator light sign 
 - [x] test chamber 4 door doesnt close
diff --git a/src/controls/controller_actions.c b/src/controls/controller_actions.c
index 2715267..c7a76d5 100644
--- a/src/controls/controller_actions.c
+++ b/src/controls/controller_actions.c
@@ -6,20 +6,20 @@
 #include "../savefile/savefile.h"
 
 unsigned char gDefaultControllerSettings[ControllerActionSourceCount] = {
-    [ControllerActionSourceAButton] = ControllerActionJump,
-    [ControllerActionSourceBButton] = ControllerActionUseItem,
+    [ControllerActionSourceAButton] = ControllerActionOpenPortal1,
+    [ControllerActionSourceBButton] = ControllerActionOpenPortal0,
     [ControllerActionSourceCUpButton] = ControllerActionMove,
     [ControllerActionSourceCRightButton] = ControllerActionNone,
     [ControllerActionSourceCDownButton] = ControllerActionNone,
     [ControllerActionSourceCLeftButton] = ControllerActionNone,
-    [ControllerActionSourceDUpButton] = ControllerActionMove,
+    [ControllerActionSourceDUpButton] = ControllerActionLookForward,
     [ControllerActionSourceDRightButton] = ControllerActionNone,
-    [ControllerActionSourceDDownButton] = ControllerActionNone,
+    [ControllerActionSourceDDownButton] = ControllerActionLookBackward,
     [ControllerActionSourceDLeftButton] = ControllerActionNone,
     [ControllerActionSourceStartButton] = ControllerActionPause,
-    [ControllerActionSourceLTrig] = ControllerActionOpenPortal1,
-    [ControllerActionSourceRTrig] = ControllerActionOpenPortal1,
-    [ControllerActionSourceZTrig] = ControllerActionOpenPortal0,
+    [ControllerActionSourceLTrig] = ControllerActionDuck,
+    [ControllerActionSourceRTrig] = ControllerActionJump,
+    [ControllerActionSourceZTrig] = ControllerActionUseItem,
     [ControllerActionSourceJoystick] = ControllerActionRotate,
 };
 
diff --git a/src/scene/portal_surface_generator.c b/src/scene/portal_surface_generator.c
index 1bca893..720a936 100644
--- a/src/scene/portal_surface_generator.c
+++ b/src/scene/portal_surface_generator.c
@@ -235,23 +235,18 @@ int portalSurfaceFindNextLoop(struct PortalSurfaceBuilder* surfaceBuilder, struc
 #define MAX_INTERSECT_LOOPS 20
 
 int portalSurfaceIsPointOnLine(struct Vector2s16* pointA, struct Vector2s16* edgeA, struct Vector2s16* edgeDir) {
-    struct Vector2s16 originOffset;
-    struct Vector2s16 endpointOffset;
-
     if (edgeDir->equalTest == 0) {
         return 0;
     }
 
-    vector2s16Add(edgeA, edgeDir, &endpointOffset);
-    vector2s16Sub(&endpointOffset, pointA, &endpointOffset);
-
+    struct Vector2s16 originOffset;
     vector2s16Sub(edgeA, pointA, &originOffset);
 
-    int crossProduct = vector2s16Cross(&originOffset, &endpointOffset);
+    int dotProduct = vector2s16Dot(&originOffset, edgeDir);
+    int crossProduct = vector2s16Cross(&originOffset, edgeDir);
     int edgeDirLength = vector2s16MagSqr(edgeDir);
 
-    s64 angleCheck = (s64)crossProduct * 50LL / (s64)edgeDirLength;
-    return angleCheck == 0;
+    return dotProduct >= 0 && dotProduct <= edgeDirLength && abs(crossProduct) * 100 < edgeDirLength;
 }
 
 enum IntersectionType {
@@ -658,14 +653,6 @@ struct Vector2s16* portalSurfaceIntersectEdgeWithLoop(struct PortalSurfaceBuilde
         if (intersectType == IntersectionTypePoint) {
             int newPointIndex;
 
-            if (vector2s16DistSqr(&intersectionPoint, pointA) <= COLLAPSE_DISTANCE * COLLAPSE_DISTANCE) {
-                intersectionPoint = *pointA;
-            }
-
-            if (vector2s16DistSqr(&intersectionPoint, pointB) <= COLLAPSE_DISTANCE * COLLAPSE_DISTANCE) {
-                intersectionPoint = *pointB;
-            }
-
             if (intersectionPoint.equalTest == edgeA->equalTest) {
                 newPointIndex = edge->pointIndex;
                 currentEdge = portalSurfaceFindCurrentFace(surfaceBuilder, pointA, currentEdge);