diff --git a/src/routes/pokemon.js b/src/routes/pokemon.js
index f1b6a3c..ff90cd9 100644
--- a/src/routes/pokemon.js
+++ b/src/routes/pokemon.js
@@ -7,32 +7,78 @@ router.get("/", function (req, res, next) {
   res.json(pokedex);
 });
 
+
+/* GET Pokemon by HP */
+router.get('/hp', function (req, res, next) {
+  const validQueries = ['lt', 'lte', 'gt', 'gte']
+
+  if (Object.keys(req.query).every(query => !validQueries.includes(query))) {
+    return res.status(400).json({
+      message: 'Invalid Operator. Must be one of ["gt","gte","lt","lte"]',
+    });
+  }
+  const { lt, lte, gt, gte } = req.query;
+
+  const pokemon = pokedex.filter(pokemon => {
+    if (lt != null) {
+      return pokemon.base.HP < lt;
+    } else if (lte != null) {
+      return pokemon.base.HP <= lte;
+    } else if (gt != null) {
+      return pokemon.base.HP > gt;
+    } else if (gte != null) {
+      return pokemon.base.HP >= gte;
+    }
+    return;
+  });
+  if (pokemon.length !== 0) {
+    return res.json(pokemon);
+  }
+  res.status(404).json({ message: 'Not found' });
+  return;
+});
+
 /* GET Pokemon by Id. */
-router.get("/:id", function (req, res, next) {
-  // TODO: Implement this route. See swagger docs for details, by visiting http://localhost:3000/api-docs
-  res.status(501).json({ message: "Not Implemented" });
+router.get('/:id', function (req, res, next) {
+  const id = Number(req.params.id);
+  if (isNaN(id)) {
+    return res.status(400).json({ message: 'Invalid ID' });
+  }
+  const pokemon = pokedex.find(pokemon => pokemon.id === id);
+  if (pokemon != null) {
+    return res.json(pokemon);
+  }
+  res.status(404).json({ message: 'Not found' });
   return;
 });
 
 /* GET Pokemon by English Name */
-router.get("/name/:name", function (req, res, next) {
-  // TODO: Implement this route. See swagger docs for details, by visiting http://localhost:3000/api-docs
-  res.status(501).json({ message: "Not Implemented" });
+router.get('/name/:name', function (req, res, next) {
+  const name = req.params.name;
+
+  const pokemon = pokedex.find(
+    pokemon => pokemon.name.english.toLowerCase() === name.toLowerCase()
+  );
+  if (pokemon != null) {
+    return res.json(pokemon);
+  }
+  res.status(404).json({ message: 'Not found' });
   return;
 });
 
 /* GET Pokemon by Type */
-router.get("/type/:type", function (req, res, next) {
-  // TODO: Implement this route. See swagger docs for details, by visiting http://localhost:3000/api-docs
-  res.status(501).json({ message: "Not Implemented" });
-  return;
-});
+router.get('/type/:type', function (req, res, next) {
+  const type = req.params.type;
 
-/* GET Pokemon by HP */
-router.get("/hp", function (req, res, next) {
-  // TODO: Implement this route. See swagger docs for details, by visiting http://localhost:3000/api-docs
-  res.status(501).json({ message: "Not Implemented" });
+  const pokemon = pokedex.filter(pokemon =>
+    pokemon.type.some(t => t.toLowerCase() === type.toLowerCase())
+  );
+  if (pokemon.length !== 0) {
+    return res.json(pokemon);
+  }
+  res.status(400).json({ message: 'Bad request' });
   return;
 });
 
+
 module.exports = router;