diff --git a/src/levels/mixed/describe.js b/src/levels/mixed/describe.js
index 85d5e901..646996b7 100644
--- a/src/levels/mixed/describe.js
+++ b/src/levels/mixed/describe.js
@@ -5,7 +5,9 @@ exports.level = {
   "onlyEvaluateAsserts": true,
   "goalAsserts": {
     "bugfix": [
-      null
+      function (data) {
+        return data.__num_commits_upstream > 5;
+      },
     ]
   },
   "name": {
@@ -1320,4 +1322,4 @@ exports.level = {
       ]
     }
   }
-};
\ No newline at end of file
+};
diff --git a/src/levels/mixed/grabbingOneCommit.js b/src/levels/mixed/grabbingOneCommit.js
index cf69b98b..a9651bad 100644
--- a/src/levels/mixed/grabbingOneCommit.js
+++ b/src/levels/mixed/grabbingOneCommit.js
@@ -2,7 +2,9 @@ exports.level = {
   "compareOnlyMainHashAgnosticWithAsserts": true,
   "goalAsserts": {
     "main": [
-      null
+      function (data) {
+        return data.C4 > data.C1;
+      }
     ]
   },
   "disabledMap": {
@@ -877,4 +879,4 @@ exports.level = {
       ]
     }
   }
-};
\ No newline at end of file
+};
diff --git a/src/levels/mixed/jugglingCommits.js b/src/levels/mixed/jugglingCommits.js
index b1eec380..fc8ef157 100644
--- a/src/levels/mixed/jugglingCommits.js
+++ b/src/levels/mixed/jugglingCommits.js
@@ -6,8 +6,12 @@ exports.level = {
   "compareOnlyMainHashAgnosticWithAsserts": true,
   "goalAsserts": {
     "main": [
-      null,
-      null
+      function (data) {
+        return data.C2 > data.C3;
+      },
+      function (data) {
+        return data.C2 > data.C1;
+      }
     ]
   },
   "goalTreeString": "%7B%22branches%22%3A%7B%22main%22%3A%7B%22target%22%3A%22C3%27%27%22%2C%22id%22%3A%22main%22%7D%2C%22newImage%22%3A%7B%22target%22%3A%22C2%22%2C%22id%22%3A%22newImage%22%7D%2C%22caption%22%3A%7B%22target%22%3A%22C3%27%27%22%2C%22id%22%3A%22caption%22%7D%7D%2C%22commits%22%3A%7B%22C0%22%3A%7B%22parents%22%3A%5B%5D%2C%22id%22%3A%22C0%22%2C%22rootCommit%22%3Atrue%7D%2C%22C1%22%3A%7B%22parents%22%3A%5B%22C0%22%5D%2C%22id%22%3A%22C1%22%7D%2C%22C2%22%3A%7B%22parents%22%3A%5B%22C1%22%5D%2C%22id%22%3A%22C2%22%7D%2C%22C3%22%3A%7B%22parents%22%3A%5B%22C2%22%5D%2C%22id%22%3A%22C3%22%7D%2C%22C3%27%22%3A%7B%22parents%22%3A%5B%22C1%22%5D%2C%22id%22%3A%22C3%27%22%7D%2C%22C2%27%22%3A%7B%22parents%22%3A%5B%22C3%27%22%5D%2C%22id%22%3A%22C2%27%22%7D%2C%22C2%27%27%22%3A%7B%22parents%22%3A%5B%22C3%27%22%5D%2C%22id%22%3A%22C2%27%27%22%7D%2C%22C2%27%27%27%22%3A%7B%22parents%22%3A%5B%22C1%22%5D%2C%22id%22%3A%22C2%27%27%27%22%7D%2C%22C3%27%27%22%3A%7B%22parents%22%3A%5B%22C2%27%27%27%22%5D%2C%22id%22%3A%22C3%27%27%22%7D%7D%2C%22HEAD%22%3A%7B%22target%22%3A%22main%22%2C%22id%22%3A%22HEAD%22%7D%7D",
@@ -780,4 +784,4 @@ exports.level = {
       ]
     }
   }
-};
\ No newline at end of file
+};
diff --git a/src/levels/mixed/jugglingCommits2.js b/src/levels/mixed/jugglingCommits2.js
index 02746c5c..3ba8b3be 100644
--- a/src/levels/mixed/jugglingCommits2.js
+++ b/src/levels/mixed/jugglingCommits2.js
@@ -8,8 +8,12 @@ exports.level = {
   "compareOnlyMainHashAgnosticWithAsserts": true,
   "goalAsserts": {
     "main": [
-      null,
-      null
+      function (data) {
+        return data.C2 > data.C3;
+      },
+      function (data) {
+        return data.C2 > data.C1;
+      }
     ]
   },
   "name": {
@@ -957,4 +961,4 @@ exports.level = {
       ]
     }
   }
-};
\ No newline at end of file
+};